package mx.itesm.arch.mvc.plugin;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

/**
 * The activator class controls the plug-in life cycle
 */
public class Activator extends AbstractUIPlugin {

    /**
     * Plugin ID.
     */
    public static final String PLUGIN_ID = "MvcClassifierPlugin";

    /**
     * Shared instance
     */
    private static Activator plugin;

    /**
     * The constructor
     */
    public Activator() {
    }

    @Override
    public void start(BundleContext context) throws Exception {
	super.start(context);
	plugin = this;
    }

    @Override
    public void stop(BundleContext context) throws Exception {
	plugin = null;
	super.stop(context);
    }

    /**
     * Returns the shared instance
     * 
     * @return the shared instance
     */
    public static Activator getDefault() {
	return plugin;
    }

    /**
     * Returns an image descriptor for the image file at the given plug-in
     * relative path
     * 
     * @param path
     *            the path
     * @return the image descriptor
     */
    public static ImageDescriptor getImageDescriptor(String path) {
	return Activator.imageDescriptorFromPlugin(Activator.PLUGIN_ID, path);
    }
}
